[ruby-core:119808] [Ruby master Bug#20808] Data#pretty_print doesn't handle private or remove attribute readers

Issue #20808 has been updated by byroot (Jean Boussier).


Proposed patch: https://github.com/ruby/pp/pull/29

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Bug #20808: Data#pretty_print doesn't handle private or remove attribute readers
https://bugs.ruby-lang.org/issues/20808#change-110494

* Author: maicolben (Maicol Bentancor)
* Status: Open
* ruby -v: 3.3.5
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
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Given the next code:
```
Dog = Data.define(:name) do
  def inspect
    "Hello!"
  end

  private
  attr_reader :name
end

Dog.new(name: "Fido")
```

It throws an error:
- An error occurred when inspecting the object: #<NoMethodError: private method `name' called for an instance of Dog> 

And isn't using my `inspect` function



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